package collection;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Random;

public class SortInteger {
	public static void main(String[] args) {
		Random rand = new Random();
		List<Integer>list = new ArrayList<>();
		for (int i=0;i<10;i++){
			list.add(rand.nextInt(100));
		}
		System.out.println("list原始数据："+list);
		
		Collections.sort(list);
		System.out.println("list排序后数据："+list);
		System.out.println("第一个元素为:"+list.get(0));
		Collections.reverse(list);
		System.out.println("list反转后的数据："+list);
		System.out.println("第一个元素为："+list.get(0));
	}
}
